Fix threading issues.

src/sig/Panel.java

@@ -33,8 +33,8 @@ public class Panel extends JPanel implements Runnable {
     private MemoryImageSource mImageProducer;   
     private ColorModel cm;    
     private Thread thread;
-    Thread[] workerThread = new Thread[8];
+    Thread[] workerThread = new Thread[9];
-    String[][] keySets = new String[8][];
+    String[][] keySets = new String[9][];
     ConcurrentLinkedQueue<Triangle> newTris = new ConcurrentLinkedQueue<>();
     List<Triangle> accumulatedTris = new ArrayList<Triangle>();
     public static ConcurrentLinkedQueue<Triangle> accumulatedTris1 = new ConcurrentLinkedQueue<>();
@@ -134,16 +134,8 @@ public class Panel extends JPanel implements Runnable {
         int currentSet=0;
         for (String key : SigRenderer.blockGrid.keySet()) {
             if (currentPiece==0) {
-                if (currentSet==7) {
-                    if (SigRenderer.blockGrid.size()%8==0) {
-                        keySets[currentSet] = new String[pieces];
-                    } else {
-                        keySets[currentSet] = new String[SigRenderer.blockGrid.size()%8];
-                    }
-                } else {
                 keySets[currentSet] = new String[pieces];
             }
-            }
             keySets[currentSet][currentPiece]=key;
             currentPiece++;
             if (currentPiece>=pieces) {
@@ -167,18 +159,24 @@ public class Panel extends JPanel implements Runnable {
                 accumulatedTris1.clear();
             }
             final Matrix matWorld2 = matWorld;
-            for (int i=0;i<8;i++) {
+            for (int i=0;i<9;i++) {
                 final int id=i;
                 workerThread[i] = new Thread(){
                     @Override
                     public void run() {
                         ConcurrentLinkedQueue<Triangle> newTris = new ConcurrentLinkedQueue<>();
+                        if (keySets[id]!=null) {
                             for (String key : keySets[id]) {
+                                if (key!=null) {
                                     Block b = SigRenderer.blockGrid.get(key);
+                                    if (b!=null) {
                                         for (Triangle t : b.block.prepareRender(b)) {
                                             prepareTriForRender(matWorld2, matView, t, newTris);
                                         }
                                     }
+                                }
+                            }
+                        }
                         if (renderFirst) {
                             accumulatedTris2.addAll(newTris);
                         } else {

src/sig/SigRenderer.java

@@ -36,7 +36,7 @@ public class SigRenderer implements WindowFocusListener,KeyListener,MouseListene
 
     public static boolean windowActive=true;
     public static boolean WIREFRAME = false;
-    public static boolean PROFILING = true;
+    public static boolean PROFILING = false;
     public static boolean FLYING_MODE = false;
     public static int SCREEN_WIDTH=1280;
     public static int SCREEN_HEIGHT=720;
@@ -402,8 +402,6 @@ public class SigRenderer implements WindowFocusListener,KeyListener,MouseListene
         for (int x=0;x<64;x++) {
             for (int z=0;z<64;z++) {
                 addBlock(new Vector(x,0,z),Cube.class,BlockType.SOIL_WET,FacingDirection.SOUTH);
-                addBlock(new Vector(x,1,z),Plant.class,BlockType.valueOf("WHEAT_"+(r.nextInt(7))),FacingDirection.SOUTH);
-
                 //addBlock(new Vector(x,1,z),Staircase.class,BlockType.JUNGLE_PLANK,FacingDirection.SOUTH);
                 //addBlock(new Vector(x,2,z),Staircase.class,BlockType.SPRUCE_PLANK,FacingDirection.SOUTH);
                 /*for (int y=1;y<r.nextInt(5);y++) {
@@ -430,6 +428,7 @@ public class SigRenderer implements WindowFocusListener,KeyListener,MouseListene
                 }*/
             }
         }
+        addBlock(new Vector(31,1,31),Plant.class,BlockType.valueOf("WHEAT_"+(r.nextInt(7))),FacingDirection.SOUTH);
         /*addBlock(new Vector(31,2,32),Staircase.class,BlockType.PLANKS,FacingDirection.EAST);
         addBlock(new Vector(31,3,33),Staircase.class,BlockType.PLANKS,FacingDirection.WEST);
         addBlock(new Vector(31,4,34),Staircase.class,BlockType.PLANKS,FacingDirection.SOUTH);